package com.mao.other;

import mao.thinkinjava.concurency.countdownlatch.CountDownLatchDemo;

import java.io.IOException;
import java.util.concurrent.CountDownLatch;

/**
 * @author Totoro
 * @date 2020/6/10
 * @explain:
 */
public class Base {
     protected Base f1() throws IOException { return new Base();};
     String f2(int a,String s ) {return "bach";}


}
